Dynamic linking again

Seth Kurtzberg seth@cql.com
Mon, 2 Sep 2002 09:12:20 -0700


There are lots of recursive symbol interdependencies, and it just takes a 
while to resolve them all.

On Monday 02 September 2002 09:13, Duncan Coutts wrote:
> On Mon, 2 Sep 2002 15:16:37 +0100
>
> "Simon Marlow" <simonmar@microsoft.com> wrote:
> > > I got lots of linking errors about duplicate symbols doing using
> > > --whole-archive for the standard packages. Perhaps someone who knows a
> > > bit more about linking could advise me.
> >
> > I couldn't get it to work either - although I didn't get any duplicate
> > symbols when linking, it seems the resulting binary didn't have all the
> > symbol information from the library in it.  It looks like
> > -export-dynamic doesn't work properly with --whole-archive.
>
> I discovered that just giving -optl--whole-archive.didn't actually pass
> it on to the linker for some reason. If you use -optl-verbose it'll tell
> you exaclty what's going on, and --whole-archive was missing.
>
> > I'm not sure exactly what's going here.  RtsAPIDeprec.o does refer to
> > Addr_Azh_con_info, which is defined in the Addr module in the lang
> > package.  However, RtsAPIDeprec normally isn't linked in, because
> > nothing refers to anything in it.
>
> If anyone's interested, in dynamic linking in general or this poroblem
> in particular my code is here (including a makefile):
> http://charlesstreet22.force9.co.uk/~duncan/projects/dynlink/
>
> > That's a good plan.  We can probably make it easier too, perhaps by
> > providing a flag to do the right magic at link-time.  I need to think
> > about this some more.
>
> Linking in HSbase.o directly is *very* slow. I don't know enough about
> linking to know why.
>
> Duncan
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-- 
-----------------------------------
Seth Kurtzberg
M. I. S. Corp.
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